Bug 258007

Summary: Safari mix-blend-mode:color transition bug when page is longer than viewport
Product: WebKit Reporter: Marita Plafka <marita.plafka>
Component: CompositingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 16   
Hardware: Mac (Apple Silicon)   
OS: iOS 16   
Attachments:
Description Flags
video capture of the described behavior and bug none

Marita Plafka
Reported 2023-06-12 23:40:38 PDT
Created attachment 466675 [details] video capture of the described behavior and bug While transitioning the opacity, Safari looses the mix-blend-mode:color look. This happens if the page content is longer than the viewport. This codepen shows the bug https://codepen.io/miashadowblue/pen/LYXVoMm. Either follow the description in the codepen or resize the window so that the module doesn't fit the viewport anymore. If the transitioning bug happened once, you have to reload the page for it to work again, even if the page content fits the viewport again. Tested on MacOS Ventura 13.2.1 - Safari 16.3 and MacOS Ventura 13.4 - Safari 16.5.
Attachments
video capture of the described behavior and bug (72.66 MB, video/quicktime)
2023-06-12 23:40 PDT, Marita Plafka
no flags
Radar WebKit Bug Importer
Comment 1 2023-06-13 09:55:45 PDT
Simon Fraser (smfr)
Comment 2 2024-09-23 17:32:05 PDT
*** This bug has been marked as a duplicate of bug 250828 ***
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